"medical alert," you have probably seen ellen the generous joke that she loves cough syrup. the fda is not laughing about the disturbing number of cases of teenagers using it to get high. eric edwards has the details. >> it is called robo-tripping referring to the madison wrote a tustin arobo -- robotussin. >> this is a safe medicine, but when you drink a whole bottle or multiple bottles, it opens up to a whole host of problems. you can have heart palpitations, seizures, or lose consciousness. and 2004, the number of emergency room cases grows. >> is a greater problem than we know about. >> this position has been on duty when kids have come in after an overdose. what we notice a pattern that developed in the afternoon about the time that school let out. before we were done, seven or eight of these kids that all around high school age. >> the consumer health-care products association says that these medicines are very safe and the abuse is low. over the counter cough medicines are easily accessible and the gold. for the abuse experts say this may give kids a false sense of se